diff --git a/geokrige/base.py b/geokrige/base.py
index e2c27b6..220dbd5 100644
--- a/geokrige/base.py
+++ b/geokrige/base.py
@@ -445,7 +445,7 @@ def evaluate(self, groups: int = 5, seed: int = None, return_: bool = False) ->
             np.random.seed(seed)
 
         evaluator = copy.deepcopy(self)
-        data = np.column_stack([self.X, self.scaler.inverse_transform(self.y.reshape(1, -1)).ravel()])
+        data = np.column_stack([self.X, self.y_loaded])  # self.X since GDF object is not wanted here
         np.random.shuffle(data)
 
         mae_result = 0